Best Fuel Throttle Body Spacers & Adapters of 2025

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Fuel throttle body spacers and adapters are aftermarket parts that are designed to increase the performance of an engine. These products are typically made of high-quality materials such as aluminum or stainless steel and are designed to fit directly onto the throttle body of a vehicle. Fuel throttle body spacers and adapters work by increasing the airflow into the engine, which can result in improved fuel efficiency, increased horsepower, and enhanced throttle response. These products are easy to install and are a great way to improve the performance of a vehicle without having to make major modifications to the engine.
At a Glance: Our Top Picks
Top 10 Fuel Throttle Body Spacers & Adapters
BLACKHORSE-RACING 102mm Throttle Body Spacer
The BLACKHORSE-RACING Throttle Body Kit is designed to enhance your engine's performance. It features a 102mm port size on the throttle body side, tapering down to fit a 75mm intake manifold, ensuring a smooth airflow transition. This kit works with various 3-bolt and 4-bolt throttle bodies, providing versatility for your setup. However, it's important to note that you'll need to purchase a compatible 75mm to 102mm throttle body separately, as it doesn't directly bolt on. Before purchasing, make sure to check your engine application for the right fit.
WMPHE 92mm Throttle Body Adapter
The WMPHE Throttle Body Adapter is designed for both Drive by Wire and Drive by Cable systems, making it versatile for various engine configurations. This adapter is compatible with a range of LS engines, providing flexibility for your vehicle. Made from durable aluminum, it resists wear and tear, ensuring longevity and reliability. The tapered design, transitioning from a 75mm through-hole to a 92mm throttle body, optimizes airflow, enhancing performance. With included bolts and an O-ring seal, installation is straightforward, saving you time and effort.
Airaid Throttle Body Spacer 200-617
The Airaid Throttle Body Spacer is designed for 2007 to 2013 GM and GMC models, including the Silverado 1500 and Sierra. This spacer enhances fuel injection by improving airflow, which can lead to better engine performance. With a compact size of approximately 3.81 cm high and weighing only 1.1 pounds, it's easy to install without adding unnecessary weight. This product's precise fit ensures compatibility with your vehicle, making installation straightforward. By upgrading your throttle body, you can enjoy increased power and efficiency, enhancing your driving experience significantly.
ICT Billet LS Throttle Body Adapter
The ICT Billet Throttle Adapter is designed to help you easily install a 3-bolt drive-by-wire throttle body onto a 4-bolt LS intake manifold, such as those found in LS2 or LS3 engines. This adapter supports throttle bodies up to 75mm, giving you flexibility in your upgrades. Additionally, it accommodates intake manifolds up to 102mm, allowing for enhanced airflow and performance. Made from natural finish aluminum, it comes with all necessary mounting hardware and a gasket, ensuring a complete installation without the hassle of sourcing extra parts.
Airaid PowerAid Throttle Body Spacer
The Airaid Throttle Body Spacer is designed to enhance your vehicle's performance by improving low-end torque and throttle response. By installing this spacer with basic hand tools, you can enjoy a more responsive driving experience. It also helps maximize fuel efficiency, allowing you to get more mileage from each tank. Made in the USA, this product ensures quality and reliability, providing you with peace of mind as you upgrade your vehicle's capabilities.
Airaid PowerAid Throttle Body Spacer
The Airaid PowerAid Throttle Body Spacer is made of aluminum, easy to install in under an hour, and requires no drilling or cutting. It improves low end torque and throttle response, making your vehicle more responsive to your driving. It is a great addition to your fuel throttle body spacers and adapters collection.
Trans-Dapt 2457 Throttle Body Spacer
The Trans-Dapt Throttle Body Spacer is a lightweight auto part that weighs just 0.5 lbs, making it easy to handle during installation. This single-unit package ensures you have everything you need for a straightforward setup. Manufactured in the United States, this product stands out for its quality. Designed specifically for fuel throttle body applications, it enhances your vehicle's performance by improving airflow, which can lead to better throttle response and efficiency. You will appreciate the convenience of a reliable and efficient throttle body spacer that can help optimize your engine's performance.
Airaid Throttle Body Spacer
The Airaid Throttle Body Spacer, also known as the Airaid Spacer, is a power-packed accessory that is designed to enhance your vehicle's performance. This easy-to-install spacer is equipped with PowerAid technology, which improves low-end torque and throttle response. By maximizing fuel efficiency, the Airaid Spacer helps you save money at the pump. Made in the USA, this high-quality product is built to last. Whether you're looking for better acceleration or improved fuel economy, the Airaid Spacer is a must-have upgrade for your vehicle.
ICT Billet LS3 Throttle Body Spacer
The ICT Billet Throttle Body Spacer is designed to enhance your vehicle's performance. It includes everything you need for a straightforward installation, such as the adapter plate, all necessary bolts, and an O-ring seal. Made from high-quality aerospace-grade billet aluminum in Wichita, Kansas, this spacer ensures durability and reliability. Its 1/2 inch spacing increases airflow, which can lead to improved throttle response and efficiency. With a 92mm through hole, it is compatible with 4 bolt throttle bodies, making it a versatile choice for many LS3 setups.
aFe Power Silver Bullet 46-32005 Dodge Throttle Body Spacer
The aFe Power Throttle Body Spacer is a high-quality product designed to optimize the combustion cycle in your Dodge vehicle. With a straight forward installation process, this spacer is easy to install and can provide you with noticeable improvements in performance. By eliminating the annoying whistle found in helix only throttle body spacers, this product ensures a smooth and quiet driving experience. The aFe Power Throttle Body Spacer is built to aFe's high standards, guaranteeing durability and reliability. Upgrade your vehicle with this throttle body spacer and enjoy enhanced performance and a quieter ride.
Frequently Asked Questions (FAQs)
1. Do throttle body spacers really work?
Yes, throttle body spacers have been shown to provide a small but noticeable increase in horsepower, torque, and fuel economy. They are an affordable and easy-to-install modification that can enhance vehicle performance.
2. How much horsepower will a throttle body spacer add?
A throttle body spacer can add up to 18 more horsepower and increase torque by around 25 ft lbs. It is a cost-effective way to improve power and performance in your vehicle.
3. Do throttle body spacers improve gas mileage?
Throttle body spacers can enhance fuel mileage by increasing the velocity and swirl action of incoming air. This improves low and midrange power as well as fuel efficiency, making it a beneficial upgrade for better gas mileage.
4. Do throttle body spacers change sound?
Yes, throttle body spacers can produce a whistling sound when installed. While some people may find it appealing, others may find it annoying.
5. Do throttle body spacers require a tune?
Throttle body spacers do not significantly affect overall performance or air/fuel delivery, so a tune is not necessary after installation. They can be easily added without requiring any tuning.
6. Are bigger throttle bodies worth it?
Bigger throttle bodies can provide improved throttle response and increased power. Additionally, high-flow fuel injectors can enhance the air/fuel mixture for more efficient combustion. Both upgrades can contribute to better overall performance.
7. Does changing the throttle body require a tune?
For vehicles manufactured before 2005, a tune is not required when adding a new throttle body. However, for 2005+ vehicles, a tune is recommended for throttle body changes and updates. It's important to note that some throttle bodies may require a tune for proper installation.
During our fuel throttle body spacers & adapter research, we found 24 fuel throttle body spacers & adapter products and shortlisted 10 quality products. We collected and analyzed 5,332 customer reviews through our big data system to write the fuel throttle body spacers & adapters list. We found that most customers choose fuel throttle body spacers & adapters with an average price of $78.42.
The fuel throttle body spacers & adapters are available for purchase. We have researched hundreds of brands and picked the top brands of fuel throttle body spacers & adapters, including BLACKHORSE-RACING, WMPHE, Airaid, ICT Billet, Trans-Dapt Performance. The seller of top 1 product has received honest feedback from 645 consumers with an average rating of 4.8.

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.